PNC Norge AS is tunnelling through two mountains to develop a road 10 kilometres south of the Arctic Circle in Norway. The contractor relies on a Sandvik DT1131i jumbo equipped with a 3D scanner to minimize overprofile and underprofile.
DT1131i Tunneling jumbo
Sandvik DT1131i three-boom, electro-hydraulic jumbo is designed for fast and accurate drilling in tunneling and cavern excavation. The computer-controlled rig has automatic drilling functions and operator-controlled boom positioning. It drills holes with a diameter of 45 to 64 millimeters (1 ¾ to 2 ½ inches) with a depth of up to 6.1 meters (20 feet).
Sandvik DT1131i is designed face drilling, bolt hole drilling, and mechanized long-hole drilling. It's productive, reliable and highly efficient.
Sandvik DTi jumbos are fast, accurate and user-friendly. Together with the iSURE tunnel management program, intelligent iDATA control system, newly launched high frequency Sandvik RD525 drills, robust booms and advanced drill string guides, they offer an excavation result of the highest quality with a low operating cost.
To further improve the excavation process, remote access via WLAN can be chosen. This allows web-based data transfer as well as online MWD. The DTi design also offers ease of service which reduces maintenance downtime. The components are damage-protected, and all daily service points are accessible from the ground level.
- Automatic boom movements, pre-planned drilling patterns and data collection offer productivity control
- Noise and vibration-insulated cabin offers comfort and excellent visibility
- RD525 series rock drills deliver superior performance with high consumable life
- Dynamic correcting redirects drilling during boom movement, and helps keeping the hole bottom in place
- Lock-to-target helps you to find the hole position quickly and accurately
|Tunnel size||10,920 - 18,210 mm (430 - 717 in.)|
|Coverage area||20 - 183 m² (215 - 1 970 ft²)|
|Hole diameter||43 - 64 mm (1 ¾ - 2 ½ in.)|
|Hole length||Up to 6,085 mm|
|Rock drill||RD525, 25 kW (33.5 hp)|
|Boom||3 x SB150i|
|Elevating boom support||NO|
|Feed||3 x TF5i, 12 - 21 ft|
|Length||17,780 mm (58 ft) with default feed|
|Width||3,860 mm (12.7 ft) drilling
2,950 mm (9.7 ft) tramming
2,950 mm (9.7 ft) transportation
|Height||4,690 mm (183.80 in.) drilling
3,690 mm (195.47 in.) tramming
|Weight (depending on options)||45,500 kg (100,310 lbs) basic
49,500 kg (109,128 lbs) with utility boom